CVE-2026-59152

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to 0.8.18, an attacker who can send an HTTP request to a server running the LangSmith SDK's TracingMiddleware can cause that server to read an arbitrary file from its local filesystem and upload the contents to...

CVE-2026-59152

The LangSmith Client SDKs’ TracingMiddleware had a vulnerability before version 0.8.18 where an HTTP request to a server running TracingMiddleware could trigger reading an arbitrary file from the server’s filesystem and uploading it to LangSmith as a trace attachment. This enables a trust-boundar...

CVE-2026-59152 Arbitrary server-side file read in LangSmith SDK TracingMiddleware

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to 0.8.18, an attacker who can send an HTTP request to a server running the LangSmith SDK's TracingMiddleware can cause that server to read an arbitrary file from its local filesystem and upload the contents to...

CVE-2026-59152 Arbitrary server-side file read in LangSmith SDK TracingMiddleware

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to 0.8.18, an attacker who can send an HTTP request to a server running the LangSmith SDK's TracingMiddleware can cause that server to read an arbitrary file from its local filesystem and upload the contents to...

GHSA-F4XH-W4CJ-QXQ8 LangSmith SDK TracingMiddleware: Arbitrary server-side file read

Summary An attacker who can send an HTTP request to a server running the LangSmith SDK's TracingMiddleware can cause that server to read an arbitrary file from its local filesystem and upload the contents to LangSmith as a trace attachment. Depending on how the distributed trace system is deploye...

PT-2026-55945

Name of the Vulnerable Software and Affected Versions LangSmith Client SDKs versions prior to 0.8.18 Description An issue exists in the TracingMiddleware where an attacker can send an HTTP request to a server to force the reading of an arbitrary file from the local filesystem. The contents of the...